When your society has inhabited a small, remote island for countless generations and boasts a population of only 300,000, the odds of having sex with a relative are significant. Luckily, Icelanders now have a handy tool to avoid family-sex.

At the Jules Verne Adventure Film Festival last month during the Heroesevent, we noticed that Milo Ventimiglia and Hayden Panettiere were canoodling with each other the whole time, whispering back and forth like giddy schoolkids. But, we chalked it up to nerves and confusion about what was going on during the Q&A.…